AVIF is an ad hoc agreement from an industry coalition interested in web media delivery. There are literally no individuals or governments participating, only big internet media corporations and companies producing solutions for internet media needs.

JPEG XL is an international standard related to a larger field of interests (photography, print, industrial quality assurance imaging, multi-spectral imaging, space technology, heat cameras, mastering, raw-like imaging, medical imaging, storage, archiving, media delivery, government needs, ...). Participation fee is moderage and individuals can participate.